Datasheet

LTC1647-1/
LTC1647-2/LTC1647-3
4
1647fa
TYPICAL PERFORMANCE CHARACTERISTICS
I
CC
vs V
CC
I
CC
vs Temperature I
CC1
vs V
CC2
V
CC
(V)
2
6 10 14 184 8 12 16
I
CC
(mA)
1647-1/2/3 G01
6
5
4
3
2
1
0
T
A
= 25°C
I
CC
= I
CC1
+ I
CC2
V
CC
= V
CC1
= V
CC2
= ON1 = ON2
TEMPERATURE (°C)
–75 –50 –25 0 25 50 75 100 125 150
I
CC
(mA)
1647-1/2/3 G02
6
5
4
3
2
1
0
I
CC
= I
CC1
+ I
CC2
V
CC
= V
CC1
= V
CC2
= ON1 = ON2
V
CC
= 15V V
CC
= 12V
V
CC
= 3V
V
CC
= 5V
V
CC2
(V)
02468101214161820
I
CC1
(mA)
1647-1/2/3 G03
5
4
3
2
1
0
T
A
= 25°C
V
CC1
= 15V
V
CC1
= 12V
V
CC1
= 3V
V
CC1
= 5V
LTC1647-1 Pinout
PIN DESCRIPTION PIN DESCRIPTION
1V
CC
5 GATE2
2 ON1 6 GATE1
3 ON2 7 SENSE2
4 GND 8 SENSE1
LTC1647-1 Does Not Have the FAULT Status Feature.
LTC1647-2 Pinout
PIN DESCRIPTION
1V
CC
2 ON1 and FAULT1
(Internally Tied Together)
3 ON1 and FAULT2
(Internally Tied Together)
4 GND
The ONX/FAULTX must be connected to a driver via a resistor if the
autoretry feature is being used.
PIN DESCRIPTION
5 GATE2
6 GATE1
7 SENSE2
8 SENSE1
LTC1647-3 Pinout
PIN DESCRIPTION PIN DESCRIPTION
1V
CC
9NC
2 ON1 10 NC
3 FAULT1 11 NC
4 ON2 12 GATE2
5 FAULT2 13 GATE1
6 NC 14 SENSE2
7 NC 15 SENSE1
8 GND 16 V
CC2
PIN TABLES